CDK1307AILP40 - 12/13-bit 20MSPS Ultra-Low Power ADC | MaxLinear
N.º de pieza: CDK1307AILP40 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $8.45 | $8,45 |
| 10 | $7.62 | $76,20 |
| 100 | $6.78 | $678,00 |
| 500 | $5.94 | $2.970,00 |
| 1.000 | $5.21 | $5.210,00 |
CDK1307AILP40 Descripción general
An analog-to-digital converter (ADC) is an integrated circuit that converts continuous analog signals into discrete digital codes. The ADC is a critical bridge in the signal chain between the analog front end (sensors, amplifiers, filters) and the digital processing domain (DSP, microcontrollers, FPGAs). Within the broader IC taxonomy, ADCs belong to data converters -> mixed-signal ICs -> semiconductor. The CDK1307A family targets high-performance, low-power applications where SNR, throughput, and power budget must all be optimized simultaneously.
Key features include 12/13-bit resolution, 20MSPS maximum sampling rate, 19mW ultra-low power dissipation, 72.6 dB SNR at 8MHz analog input, internal reference circuitry, 1.8V core supply, 1.7V to 3.6V I/O supply, and parallel CMOS output interface. The 40-pin QFN package is pin-compatible with the CDK1308 family, simplifying board-level migration between speed grades.
The CDK1307A utilizes a pipelined architecture with digital error correction, allowing the device to maintain high SNR performance at high input frequencies. Internal reference circuitry eliminates the need for external reference components, reducing BOM cost and board area while maintaining low drift over temperature.
Typical applications include portable and battery-powered imaging systems, portable test and measurement equipment, hand-held oscilloscopes, ultrasound front-end digitization, and low-power digital communications receivers. The 20MSPS throughput makes it well suited to IF sampling and baseband conversion in software-defined radio.
When designing with this device, ensure the analog input network (driver amplifier and RC network) is configured to match the ADC's input common-mode and bandwidth. The 1.8V core supply and 1.7-3.6V I/O supply allow direct interfacing to modern low-voltage FPGAs and processors without level shifters.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternativas directas para CDK1307AILP40 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con CDK1307AILP40 (mismo factor de forma y huella) — difiere en Resolution, Package, Reference, Architecture, Manufacturer.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
CDK1307AILP65
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
CDK1307AILP80
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
CDK1308AILP40
✅ Sustitución directa✓ En stock
$4.1 / unidad
Ver hoja de datos →CDK1308AILP65
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
CDK1308AILP80
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
CDK1307AILP40 Valores máximos y características eléctricas
| Resolución | 12/13 bit |
| Frecuencia de muestreo | 20 MSPS |
| Architecture | Pipelined |
| SNR | 72.6 dB at 8 MHz input |
| Power Dissipation | 19 mW at 20 MSPS |
| Core Supply Voltage | 1.8 V |
| I/O Supply Voltage | 1.7 V to 3.6 V |
| Output Interface | Parallel CMOS |
| Reference Type | Internal |
| Encapsulado | 40-pin QFN |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
Configuración de pines de CDK1307AILP40
| Pin 1 | GND — Ground |
| Pin 2 | AIN+ — Analog input positive |
| Pin 3 | AIN- — Analog input negative |
| Pin 4 | VREF — Reference voltage (internal) |
| Pin 5 | VDD_CORE — 1.8V core supply |
| Pin 6 | GND — Ground |
| Pin 7 | CLK+ — Clock input positive |
| Pin 8 | CLK- — Clock input negative |
| Pin 9 | VDD_IO — I/O supply (1.7V-3.6V) |
| Pin 10 | OE — Output enable |
| Pin 11 | D0 — Data output bit 0 (LSB) |
| Pin 12 | D1 — Data output bit 1 |
| Pin 13 | D2 — Data output bit 2 |
| Pin 14 | D3 — Data output bit 3 |
| Pin 15 | D4 — Data output bit 4 |
| Pin 16 | D5 — Data output bit 5 |
| Pin 17 | D6 — Data output bit 6 |
| Pin 18 | D7 — Data output bit 7 |
| Pin 19 | D8 — Data output bit 8 |
| Pin 20 | D9 — Data output bit 9 |
| Pin 21 | D10 — Data output bit 10 |
| Pin 22 | D11 — Data output bit 11 |
| Pin 23 | D12 — Data output bit 12 (MSB, 13-bit mode) |
| Pin 24 | NC — Not connected |
| Pin 25 | PD — Power down |
| Pin 26 | RESET — Reset |
| Pin 27 | MODE — Mode select |
| Pin 28 | GND — Ground |
| Pin 29 | VDD_IO — I/O supply (1.7V-3.6V) |
| Pin 30 | NC — Not connected |
| Pin 31 | NC — Not connected |
| Pin 32 | NC — Not connected |
| Pin 33 | NC — Not connected |
| Pin 34 | NC — Not connected |
| Pin 35 | NC — Not connected |
| Pin 36 | NC — Not connected |
| Pin 37 | VDD_CORE — 1.8V core supply |
| Pin 38 | GND — Ground |
| Pin 39 | GND — Ground |
| Pin 40 | EP — Exposed thermal pad (connect to GND) |
Aplicaciones típicas
CDK1307AILP40 es adecuado para 6 aplicacións: Portable Battery-Powered Imaging Systems, Hand-Held Digital Oscilloscope Front-End, Ultrasound Front-End Digitization, Low-Power Software-Defined Radio Receiver, Industrial Process Control Data Acquisition, Test and Measurement Instrumentation.
Portable Battery-Powered Imaging Systems
The CDK1307AILP40's 19 mW dissipation at 20 MSPS makes it ideal for portable imaging systems where battery life is critical. The 12/13-bit resolution and 72.6 dB SNR at 8 MHz preserve dynamic range for low-light imaging front-ends. The 1.8V core and 1.7-3.6V I/O rails allow direct connection to low-power FPGAs and image processors without level shifters, reducing BOM and extending runtime. Compared to competing 12-bit 20MSPS ADCs that often exceed 50 mW, the CDK1307AILP40 offers approximately 60% power savings, directly translating to longer battery life in hand-held cameras, thermal imagers, and machine-vision modules.
Recomendado
Hand-Held Digital Oscilloscope Front-End
Hand-held oscilloscopes require a low-power ADC with sufficient bandwidth and SNR to capture real-world signals. The CDK1307AILP40 delivers 20 MSPS with 72.6 dB SNR, suitable for digitizing signals up to approximately 8 MHz analog input. The 19 mW power dissipation keeps thermal design simple in compact enclosures, while the 40-pin QFN package allows a small PCB footprint. The parallel CMOS output interface simplifies connection to low-cost FPGAs that perform triggering and display processing. Engineers can scale to CDK1307AILP65 or LP80 if the design later requires more bandwidth.
Recomendado
Ultrasound Front-End Digitization
Medical ultrasound receivers digitize low-level echo signals at IF frequencies from 2-10 MHz, requiring a 12-13-bit ADC with high SNR and low power. The CDK1307AILP40's 72.6 dB SNR at 8 MHz preserves tissue-contrast dynamic range, while 19 mW per channel enables dense multi-channel arrays without exceeding thermal budgets. The 40-pin QFN package supports compact board layouts typical of portable ultrasound probes. Pipelined architecture with digital error correction provides consistent SNR across the device's analog input bandwidth, reducing calibration overhead in production.
Recomendado
Low-Power Software-Defined Radio Receiver
Software-defined radio (SDR) receivers digitize IF signals directly, offloading demodulation to software. The CDK1307AILP40's 20 MSPS sample rate supports IF-sampling architectures in narrowband receivers below 8 MHz bandwidth. The internal reference eliminates external reference components, reducing BOM and improving temperature stability. The 1.7-3.6V I/O rail allows direct connection to 3.3V FPGAs used for DSP. The 19 mW power budget is critical for portable SDR dongles and battery-powered communications gear. Designers targeting wider bandwidth can migrate to the pin-compatible CDK1307AILP65 or LP80.
Recomendado
Industrial Process Control Data Acquisition
Industrial data acquisition systems require 12-13-bit resolution at moderate sample rates with low power consumption for distributed sensor nodes. The CDK1307AILP40 digitizes sensor signals from pressure, flow, and temperature transducers with sufficient accuracy for process control loops. The 1.8V core supply operates directly from switching regulators commonly used in industrial 24V systems. The 40-pin QFN package provides a robust surface-mount solution suitable for vibration-prone factory environments. SNR of 72.6 dB ensures measurement integrity in electrically noisy industrial settings.
Recomendado
Test and Measurement Instrumentation
Bench-top and portable test instruments need a low-power ADC with predictable SNR performance. The CDK1307AILP40's pipelined architecture with digital error correction provides consistent results across production units, simplifying calibration. The 12/13-bit resolution and 20 MSPS support waveform analysis of audio, ultrasonic, and baseband communications signals. The 1.7-3.6V I/O rail interfaces directly to modern LCD controllers and ARM-based processors. The 40-pin QFN allows compact multi-channel instruments with 4-8 synchronized ADCs on a single board, suitable for low-cost logic analyzers and protocol analyzers.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para CDK1307AILP40 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | CDK1307AILP65 | CDK1307AILP80 | CDK1308AILP40 | CDK1308AILP65 | CDK1308AILP80 |
|---|---|---|---|---|---|---|
| Package | 40-pin QFN | 40-pin QFN - same | 40-pin QFN - same | 40-pin QFN - same | 40-pin QFN - same | 40-pin QFN - same |
| Brand | MaxLinear | MaxLinear | MaxLinear | MaxLinear | MaxLinear | MaxLinear |
| Resolution | 12/13 bit | 12/13 bit | 12/13 bit | 14 bit | 14 bit | 14 bit |
| Sampling Rate | 20 MSPS | 65 MSPS | 80 MSPS | 20 MSPS | 65 MSPS | 80 MSPS |
| Core Supply | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| I/O Supply | 1.7V-3.6V | 1.7V-3.6V | 1.7V-3.6V | 1.7V-3.6V | 1.7V-3.6V | 1.7V-3.6V |
| Output Interface | Parallel CMOS | Parallel CMOS | Parallel CMOS | Parallel CMOS | Parallel CMOS | Parallel CMOS |
| Reference | Internal | Internal | Internal | Internal | Internal | Internal |
Diferenciadores clave
- Lowest power consumption in the CDK1307A family (frente a CDK1307AILP65)
- Same 40-pin QFN package as higher-speed family members (frente a CDK1307AILP80)
- Upgrade path to 14-bit resolution in same footprint (frente a CDK1308AILP40)
Notas de diseño
Provide separate 1.8V (core) and 1.7-3.6V (I/O) supply rails. Decouple each supply pin with a 100nF X7R ceramic capacitor placed within 5mm of the pin, plus a 10uF bulk capacitor near the IC. Estimated: at 19mW core dissipation on a 40-pin QFN with theta_JA of approximately 30 C/W, junction temperature rise is only 0.6 C above ambient at room temperature, so no heatsink is required. For multi-ADC designs, allocate separate LDO regulators for the core rail to minimize digital switching noise coupling into the analog front-end.
Route the analog input traces as a 50 ohm differential pair (if differential clock is used) from the driver amplifier to the AIN+/AIN- pins. Keep digital output traces (D0-D12) on the opposite side of the package and use a continuous ground plane on an inner layer to isolate analog and digital return currents. Place the input RC network (typically 25 ohm + 10pF) within 5mm of the analog input pins to limit bandwidth and dampen charge kickback from the ADC's switched-capacitor input stage. Connect the exposed thermal pad directly to a solid ground pour for thermal and electrical performance.
Do not exceed the absolute maximum ratings on the analog input pins (typically AVDD + 0.3V). When using single-ended input, tie AIN- to a clean 0.9V common-mode voltage and drive AIN+ with the signal. Avoid routing the parallel CMOS outputs near the analog input traces; a 3mm minimum spacing is recommended. The MODE pin selects between 12-bit and 13-bit operation; verify the FPGA or DSP firmware can handle the wider 13-bit output word. Do not apply clock signals before power is stable - sequence the supplies to avoid latch-up.
Use a low-jitter clock source (jitter < 5 ps RMS) to preserve SNR at high input frequencies. According to the SNR = 20*log10(1/(2*pi*Fin*Tjitter)) relationship, SNR degrades rapidly at high analog input frequencies if clock jitter is excessive. For 8 MHz input, target clock jitter below 3 ps RMS. Use a clock buffer (e.g., CDCLVC1102 or similar) to provide a low-jitter clock to multiple ADCs in synchronized systems. Add a small RC filter (10 ohm + 10pF) on the clock input to filter high-frequency noise.
Información de cumplimiento
RoHS compliant per distributor listings. Not AEC-Q100 qualified (industrial/commercial grade). For automotive applications, consult MaxLinear for AEC-Q100 grade availability.
